Shark Coast Tactical Topography Features The Shark Coast Tactical Topography merges sleek design with rugged functionality built on a 4150 CMV barrel with a Melonite finish and a 1:7 twist that stabilizes a wide range of 5.56 bullet weights. M4 feed ramps and an M16 bolt carrier group work together for smooth reliable cycling while the carbine-length gas system with a low-profile gas block keeps the action running under a variety of conditions. The 1/2x28 threaded muzzle accepts a standard A2 flash hider or aftermarket muzzle devices to suit the shooter s preference. A forward assist and ejection port cover round out the mil-spec upper giving the rifle familiar controls for any AR-15 shooter. The black Cerakote finish with white topographical engravings spans the receivers and 15-inch M-LOK handguard bringing a unique artistic look while maintaining the corrosion resistance expected of a high-performance AR platform. A dry film lubed 7075 T6 forged upper with T-markings pairs with a mil-spec lower parts kit for consistent reliable function. The Magpul SL-K stock adjusts for length of pull while the Magpul MOE grip provides a secure ergonomic hold in any shooting position. Shipping with a 30-round magazine the Topography is ready to run right out of the box for range days or duty-style training. Shark Coast Tactical Topography Specifications Brand: Shark Coast Tactical Model: Topography Type: Semi-Automatic Rifle Caliber: 5.56 NATO Operating System: Direct Impingement Barrel Length: 16 Twist Rate: 1:7 Capacity: 30+1 Barrel Finish: Black Nitride Barrel Description: Threaded Receiver Finish: Black Cerakote w/White Engraving Receiver Material: Aluminum Handguard: M-LOK Stock: Magpul SL-K Grip: Black Polymer Hand: Right Hand Thread Pattern: 1/2x28 Weight: 6.6 lbs. Available At: GrabAGun